Lyi John News Today

Allegedly for conspireing to support isis. one of them suggesting he would shoot president obama. joining us now from washington nbc news justice correspondent pete williams. get to that story in a second but want to loop back to something we mentioned at the top of the hour. what more can you tell us now about the identity were learning from the "washington post" and from the bbc about the man who has appeared in the isis beheading videos and earned the anymore jihadly lyi john? >> u.s. intelli...